According to the hemolysis results, how does Bacillus cereus differ from B. subtilis?

Q: Between Bacillus megaterium, Bacillus sphaericus, and Bacillus subtilis, which are positve for…

A: MSA or Mannitol Salt Agar is a differential and selective medium that encourages the growth of some…

Q: explain that  Staphylococcus aureus is gram positive

A: Staining : It is  a biochemical technique of coloring specimens. To stain these specimens dyes are…

Q: How can activity of a hemolytic exotoxin be detected?

A: Introduction  Toxins can be of two type on the basis of their secretion viz. Endotoxins and…

Q: How do the methyl-red and Voges-Proskauer tests differentiate between certain members of the…

A: Methyl-red and Voges-Proskauer tests are used to differentiate  between certain members of the…

Q: Is it possible for nonprotein compounds to test positive for the xanthoproteic test? What are these…

A: Proteins are made up of number of amino acids. Amino acids are organic compounds with two functional…

Q: Give a trivia about the Methicillin-resistant Staphylococcus aureus (MRSA)?

A: MRSA means methicillin-resistant Staphylococcus aureus. MRSA is a "staph" microorganism that doesn't…

Q: Helicobacter pylori survives in the acidic environment of the human stomach, but this organism is…

A: Helicobacter pylori is a neutrophilic bacteria i.e. it loves the neutral pH and is able to survive…

Q: What is the hemolysis, Lancefield group, and disease caused by Streptococcus pygones?

A: Hemolysis is the destruction of RBC's or blood cells and this lysis may be caused due to many…

Q: Determine the optimal pH (or range of pH) for: Escherichia coli and Staphylococcus aureus

A: Several factors like temperature, pH ,food etc determine the growth and survival of an organism.

Q: Account for the ability of streptococci to tolerate O2 in the absenceof catalase activity

A: Bacteria are prokaryotic organisms that have an undefined nucleus and nuclear membrane. Most of the…

Q: In this lab exercise, were the results of the indole test necessary to differentiate between…

A: The microbes that affect the intestine of an individual are referred to as enteric pathogens. The…

Q: What is the main purpose of haemolytic tests? What is the main substance responsible for this…

A: Pathogenic microrganism are the microbes that has capability to cause disease and infection inside…

Q: What is the difference between the use of the shape bacillus and the name Bacillus? Staphylococcus…

A: Microbiology is the study of microorganisms that are invisible to the naked eye. The microorganisms…

Q: Show a diagram of beta-hemolysis and alpha-hemolysis by different bacteria on blood agar and explain…

A: Hemolysis is the process by which red blood cells in the blood are broken down by chemicals or by…

Q: Why is glucose not the choice of carbohydrate for most differential media used in the identification…

A: Bacilli present in the intestinal tract are rod shaped bacteria.for example, enteric bacteria…

Q: How can we differentiate a Bacillus cereus from B. subtilis if both are beta hemolysis?

A: Answer:  BETA HEMOLYSIS = It is the complete lysis of red blood cells in the agar, around the…

Q: Why might members of Campylobacter not be isolated from a stoolspecimen in a diagnostic laboratory?

A: Efficient Detection of pathogenic organisms ensures the success of laboratory techniques. It is…

Q: Define the term pyogenic, what is this term referring to?

A: Pyogenic are those bacteria which leads to Infections in which pus is produced. Pus is white-yellow,…

Q: Why is it important to seek early treatment for Lymedisease?

A: We have to explain why it is essential that Lyme disease is diagnosed earlier.

Q: What function does the capsule have for Streptococcus mutans?

A: The capsule is the extracellular gel-like layer that surrounds the outside of cell wall of many…

Q: What major characteristic could be used to differentiate strainsof Pseudomonas from those of Vibrio?

A: Microorganisms are small organism that cannot be seen by naked eyes. Microorganism such as bacteria…

Q: Briefly explain the shake-tube inoculation

A: Inoculation is the key process in the microbiology in which inoculum is extracted.

Q: What two characteristics separate Salmonella from Shigella? What media can be used for this…

A: Enteric pathogens are microbes that affect the intestine and cause infections. These include…

Q: How do Salmonella typhi microorganisms live intracellularly? How are they able to replicate in…

A: Salmonella typhi is a rod shaped, flagellated, Gram Negative bacteria which is responsible for the…

Q: Describe result for gram reaction of staphylococcus capitis

A: Staphylococcus capitis  is a CoNS (Coagulase-negative species) of the genus, Staphylococcus. It has…

Q: Is  Bacillus cereus negative or positive for growing in high salt concentrations?

A: Bacillus cereus is a gram-positive, endospore forming, non-capsulated bacillus, motile with…

Q: How would you interpret the hemolytic reaction on this SBA plat

A: The term hemolysis refers to the lysis of red blood cells. The enzyme which catalyzes the reaction…

Q: What is the Mechannism of Hemolysis in pnh

A: Hemolysis is the rupture of red blood cells and the cytoplasmic content release into the surrounding…

Q: What test can be performed to differentiate between group A and group C streptococci?

A: Bacteria are a group of prokaryotic microscopic single celled organisms. They live in diverse…

Q: If the generation time of Bacillus cereus is 28 minutes, how many cells of B. cereus will there be…

A: Bacteria grow in varied environmental conditions. Low temperature, presence of acids, bases, toxins,…

Q: what treatment can kill the positive result of staphylococcus aureus in a catalase method ?

A: If an organism produces catalase enzyme, then it is able to breakdown hydrogen peroxide into water…

Q: Enterotube: Which group of bacteria are detected using this test? Which specific chemical tests are…

A: The Enterotube is an illustration of a quick, multi test framework utilized in Identifying of…

Q: What biochemical tests did we use to distinguish staphylococci from streptococci?

A: Staphylococcus and streptococcus both occur in cocci shape and both are gram positive organisms.…

Q: On blood agar whattype of hemolysis. wouldmicrococcuscoseus.have? aBor of it a

A: Micrococcus roseus shows Gamma hemolysis on bloodcagar

Q: If the bacterium in question during the perlo outbreak had beenE. coli instead of S. aureus, how…

A: The perlo outbreak was caused by Staphylococcus aureus that causes food intoxication and had led to…

Q: TRUE OF FALSE: Is E coli colonies colorless in Eosin Methylene Blue Agar (EMBA)? Coliform colonies…

A: Answer: Introduction: Bacteria inhabiting or predominantly present the human intestine is…

Q: Between Bacillus megaterium, Bacillus sphaericus, and Bacillus subtilis which are positive or…

A: The VP test detects organisms that utilize the butylene glycol pathway and produce acetoin. It…

Q: Why is Plasmodium species isolated usually in blood?

A: Plasmodium species are blood parasites belong to phylum protista that causes malaria. Vector for…

Q: The Lancefield classification of streptococci is based on what property of these cells?

A: Streptococci are Gram positive bacteria. They give catalase negative test. When they cultured on…

Q: What test can be performed to differentiate the enterococci from other group D streptococci?

A: Group D streptococci are separated into enterococcal species, including S. faecalis, S. faecium, and…

Q: Why do we interpret positive hemolysis in the complement fixationtest to mean negative for the test…

A: Complement fixation test is an immunological blood test in which presence of specific antigen or…

Q: Why does Bacillus subtilis break down phenol better even at high concentrations than E. coli and…

A: Phenol is distributed either as natural or artificial mono-aromatic compounds in various…

Q: what is the thermal death time? what is the thermal death time for Bacillus subtilis and…

A:

Q: Between  Bacillus megaterium, Bacillus sphaericus, and Bacillus subtilis which are positve and which…

A: oxidase test in microbiology is the best that is used for the determination of an organism that…

Q: How did Staphylococcus aureus become methicillin resistant?

A: S. aureus, a member of the family Micrococcaceae is a gram-positive. It is an opportunist pathogen…

Q: What single test differentiates Staphylococcus aureus from other species of staphylococci? What is…

A: Staphylococcus aureus is present on human skin and anterior nares along with other mucous membranes.…

Microbial Growth

The development of microbial growth is influenced by various natural conditions (both physical and synthetic) like pH, temperature, saltiness, gas focus (O2, CO2, and H2), nutrients, water action, and assimilation. Knowing the distinctive physical and chemical factors that influence the development and endurance of microbial growth in the climate will assist with reinforcing endeavors outfitted towards their control. These lines lessen or diminish their harmful impacts on humankind, creatures, and the climate.